No since the other question is to know if they can wake you up. This one is to know how to protect your house from them stealing blocks.
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WarfaceSep 14 '11 at 22:21

3

@fireDude67 I agree that it's possible to merge the two questions, but I don't see any need to. They are both separate questions which can stand on there own, and having them separate can help with SEO
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WipqoznSep 14 '11 at 23:16

9 Answers
9

Endermen take damage from water. So: surround your house with a moat. As long as every floor tile on the same side of the moat as your house is sufficiently illuminated (i.e., within 7 blocks of a torch, 8 blocks of glowstone, close to burning netherrack, etc.), Endermen should not be able to get to your house to disassemble it.

Bear in mind that, generally, the roof of your house is probably also a valid place for Endermen to spawn—put torches up there, too!

Note that lava is also an effective deterrent, but it will also destroy any dropped items from enemies.

Update (October 3, 2012): a mere moat is no longer sufficient. My current strategy for preventing harassment by endermen to build my house with a diagonally sloping roof and put a water source block at the uppermost point, completely submerging my house in running water; the interior contains only a nether portal in waist-deep water. The nether portal emerges into an enclosed tunnel that spirals down into the depths of the nether and is heavily illuminated, where a second portal returns you to the real world in my actual subterranean home.

Put vines on the outside of your house. Instead of grabbing blocks from your house, they will grab the vines, and the vines will just grow back. It's a self-preserving defense mechanism against endermen.

Endermen can't take some types of block, so make a wall around your house with those materials. They can't take obsidian but it's hard to harvest, but if you wait for 1.9 Endermen won't be able to carry stone-type blocks. (Already in 1.9 pre-release 2 they can't)

Last of all: don't look at them so that they won't teleport inside your house!

@fbueckert That's just a 1-rep user thinking this is a top-to-bottom forum, not a sortable list of answers. They're referring to the accepted answer and the the last-submitted one prior to this.
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SevenSidedDieSep 21 '12 at 23:50

Minor quibble: using slabs you can make your house interior 2.5 blocks high, so technically it just need to be less than three.
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mikeTheLiarSep 10 '14 at 13:03

It might take a lot of looking (and sometimes hacking, depends which one you prefer) but Endermen can't pick up diamond blocks or bedrock. Try making your house out of them. (You can use inventory or map editors to get diamond blocks too, not just bedrock).